which is a property of both alkenes and alkyn...
which is a property of both alkenes and alkynes?\nboth are highly water soluble.\nthe ph of these hydrocarbons tends to be very basic.\ntheir boiling points tend to increase with chain length.\ntheir densities are all much higher than that of water.
Answer
# Brief Explanations:
- Alkenes and alkynes are non - polar hydrocarbons. Non - polar substances are generally insoluble in water (a polar solvent), so the statement "Both are highly water soluble" is incorrect.
- Hydrocarbons like alkenes and alkynes are neutral compounds. They do not have a basic pH, so the statement "The pH of these hydrocarbons tends to be very basic" is wrong.
- For hydrocarbons (including alkenes and alkynes), as the chain length increases, the van der Waals forces between the molecules increase. With stronger intermolecular forces, more energy is required to break these forces and convert the liquid to a gas. So, their boiling points tend to increase with chain length.
- The density of hydrocarbons (alkenes and alkynes) is generally less than that of water. For example, the density of ethene (\(C_2H_4\)) is \(1.26\ g/L\) (gas phase) and the density of water is \(1000\ g/L\) (liquid phase at \(4^{\circ}C\)). So, the statement "Their densities are all much higher than that of water" is incorrect.
# Answer:
Their boiling points tend to increase with chain length.